Philosophy & Social Criticism, Volume 48, Issue 4, Page 473-483, May 2022. In my recent book Freedom of Expression as Self-Restraint, I expound and defend the moral principle of freedom of expression. This article recounts a few of the main strands of the exposition in that book, and it touches upon the justification for the principle of freedom of expression. Supplementing the abstract ideas broached in the article are several illustrative examples that render the abstractions more accessible.